Successful endeavour: SpaceX lands in the Gulf of Mexico off the coast of Pensacola, Florida after 64 days in space.

SpaceX capsule with NASA crew safely home

AP
Virus relative: In early February, Chinese researchers had found that SARS-CoV-2 is most closely related to RaTG13 sarbecovirus, which was isolated from a horseshoe bat in Yunnan province in 2013.
Science

Novel coronavirus circulated unnoticed in bats for decades, study says

R. Prasad
Variants: Studies indicate that different alleles may be involved in different populations.
Science

Gene variants and susceptibility to schizophrenia

Shubashree Desikan

Editor's Pick

Strategy wise: Countries implementing national social distancing policy showed greater reductions in transmision compared to those with regional policies.
Science

Study finds physical distancing linked to drop in coronavirus spread

PTI
High grade: A ventilator has to be exactly calibrated or it can cause altered pressure changes.
Science

Ventilators can heal but also harm

M.R. Rajagopal

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